ADP7159ARDZ-03-R7

The ADP7159 is an adjustable linear regulator powered by a 2.3 V to 5.5 V supply with a maximum output current of 2 A. The output voltage range of 1.2 V to 3.3 V depends on the specific variant. The device employs an advanced proprietary architecture to deliver high power supply rejection and ultralow noise performance, requiring only a single 10 μF ceramic output capacitor to achieve excellent line and load transient response. The ADP7159 is available in four variants, optimized for power dissipation and PSRR performance based on input and output voltage. The ADP7159 regulator features a typical output noise of 0.9 μV rms (100 Hz to 100 kHz) and a noise spectral density of 1.7 nV/√Hz from 10 kHz to 1 MHz. The ADP7159 is offered in a 10-lead, 3 mm × 3 mm LFCSP and an 8-lead SOIC package, providing a compact footprint with excellent thermal performance, making it suitable for thin, small form factor applications requiring up to 2 A output current.

Applications

• Noise-sensitive applications: PLL, VCO, and PLL with integrated VCO
• Communications and infrastructure
• Backhaul and microwave links

Key features

• Input voltage range: Adjustable output voltage range (Vₒᵤₜ): 1.2 V to 3.3 V
• Maximum load current: 2 A
• Low noise: 100 Hz to 100 kHz total integrated noise: 0.9 μV rms; 70 Hz to 100 kHz total integrated noise: 1.6 μV rms
• Noise spectral density: 1.7 nV/√Hz (10 kHz to 1 MHz)
• PSRR: 68 dB (1 kHz to 100 kHz); 45 dB (at 1 MHz)
• Dropout voltage: 200 mV (typical, Iₒᵤₜ = 2 A, Vₒᵤₜ = 3.3 V)
• Initial accuracy: ±0.6% (at Iₗₒₐd = 10 mA)
• Accuracy over full line, load, and temperature range: ±1.5%
• Quiescent current (I_GND): 4.0 mA (typical, no load); 9.0 mA (typical, 2 A)
• Low shutdown current: 0.2 μA (typical)
• Stable with 10 μF ceramic output capacitor
• 10-lead 3 mm × 3 mm LFCSP and 8-lead SOIC packages
• Precision enable
• ADIsimPower tool support